http://prntscr.com/kdwsqg http://prntscr.com/kdwszc http://prntscr.com/kdwt51 http://prntscr.com/kdwt9x http://prntscr.com/kdwtfo http://prntscr.com/kdwtmq so this started happening last night not sure why i was off playing other server then go on to remove a staff memebers rank and found out it will not let me add/remove stuff from people i tryed restarting all of the servers did not fix it. for some people it does not give them there rank but others do get it

i love luckperms good plugin i been using it for long time idk what happening now
oo server is 1.12.2 idk if this is need telling you the server is 1.12.2 or not

Please provide the error in textual form. Upload it preferably on https://gist.github.com